Phase transformations in an Ni-7.5 wt % al alloy

被引：0
|
作者：
Yu. I. Ustinovshchikov
机构：
[1] Russian Academy of Sciences,Physicotechnical Institute, Ural Branch
来源：
Russian Metallurgy (Metally) | 2012年 / 2012卷 / 9期
关键词：
Electron Diffraction Pattern; RUSSIAN Metallurgy; Bright Field Image; Dark Field Image; Nickel Superalloy;
D O I：
10.1134/S0036029512090169
中图分类号：
学科分类号：
摘要：
The structure of the Ni-7.5 wt % Al alloy subjected to heat treatment for various times at a temperature of 700, 1000, 1200, and 1300°C followed by water cooling is studied by transmission electron microscopy and electron diffraction. An ordering-separation phase transition is shown to occur in the alloy at a temperature slightly above 1200°C. As a result of this transition, the microstructure formed at 1300°C due to separation dissolves, and chemical compound Ni3Al particles form as a result of a tendency toward ordering.
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收藏
页码：786 / 790
页数：4
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